Qind 12 1/2 x 2.25/2.75 Innertube Qind brand, 12 1/2 x 2.25/2.75 bent angle valve stem inner tube that fits most electric scooter brands such as Currie, Schwinn, Mongoose, GT, Freedom, BMX, Boreem, Roketa, Sunl and many more. Size: 12 1/2 x 2.25/2.75 Fits 8" Rim Bent Angle Valve Stem